Flatsjön
southern humic brown forest lake · 57°N
clarity 2.1 mmax depth 8 mpH 5.7mesotrophic · humicstatus moderateforest track · 22 min for the last stretch
Character of the water
Flatsjön lies in the south — a southern humic brown forest lake. The tea-stained, humic water hides the bottom within an arm's length.
The surroundings
The lake lies half-remote, a fair way from the nearest road, tucked into woodland.
Moderately deep (8 m) — shallow bays, the odd reef and a deeper channel through the middle.
Permits & rules
Fishing permit required — Flatsjön FVOF. Day permit ~140 kr · annual permit ~700 kr.
- Pike: keep at most one over 75 cm per day.
- Handheld tackle only. Respect the protected zones at the inlets and outlets.
Species in Flatsjön
perch predatory fish
typically ~22 cm · can reach 45 cm
Perch grazes the rich water in schools — where there's one, there are more.
pike predatory fish
typically ~62 cm · can reach 120 cm
In the murky light, pike shadows the baitfish and hits in short rushes.
roach coarse fish
typically ~18 cm · can reach 32 cm
Roach grazes the rich water in schools — where there's one, there are more.
Fishing Flatsjön
perch and pike sit at the top of the food chain in Flatsjön, carried by roach. The brown, humic water keeps visibility short — the fishing is more about vibration than sight.
The fishing here follows the water's own rhythm: dawn and dusk have their windows, fronts close and open them, and the season moves the fish. No two sessions at Flatsjön are alike.
General rules of thumb for this kind of water
- Brown, humic water dampens the light — fishing can be good even in the middle of the day.
The catch board
- 1Erik Raskroach19 cm
- 2Jukka Weberperch18 cm
- 3Hanna Åströmroach17 cm
- 4Stefan Åströmroach15 cm
- 5Stefan Korhonenroach14 cm
- 6Bjørn Falkroach14 cm
Species records here
perch18 cmJukka Weber
roach14 cmStefan Korhonen
The same water, for real
